Duster can liquid may damage my motherboard?

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gunt666

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Nov 27, 2015
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I was cleaning my computer and a liquid was sprayed into the motherboard and evaporated almost instantly. How bad is this? And how much should i wait until I turn it on?
 
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bjornl
While not ideal, it is not a big deal so long as the PC was turned off. Just read the ingredients label and see if you sprayed anything corrosive in there. I have not seen any canned air products which contained anything you need to worry about. If you want to be certain, (with the PC turned off) open the PC and use some isopropyl alcohol to clean off all the residue.
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bjornl

bjornl

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Mar 16, 2016
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While not ideal, it is not a big deal so long as the PC was turned off. Just read the ingredients label and see if you sprayed anything corrosive in there. I have not seen any canned air products which contained anything you need to worry about. If you want to be certain, (with the PC turned off) open the PC and use some isopropyl alcohol to clean off all the residue.
 
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Solution
skit75

skit75

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Oct 7, 2008
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You aren't supposed to shake those cans or even spray at much of an angle because the liquid propellant will get on top of the air pressure. It really won't hurt anything and should dry very fast. Short quick bursts at an upright angle. If the can is getting cold, give it a few minutes.
 
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InvalidError

InvalidError

Titan
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May 18, 2007
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Most electronics dusters are simply R134 refrigerant/propellant or something similar. There is no liquid, no solvent or anything else of importance in them.

You do want to shake those a bit to warm up the propellant or otherwise the pressure will drop substantially almost as soon as you start spraying and low pressure makes the dusting far less effective.
 
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skit75

skit75

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Oct 7, 2008
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I haven't seen one that required or requested "Shaking" in years..... What are you using? In fact, I only ever see the ones that explicitly say "Do not Shake" on them.
 
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gunt666

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Nov 27, 2015
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Ingredients are propane, butane, Ethane, 3-butadiene,
isobutane, difluoroethane.
 
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bjornl

bjornl

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All of those are very fast evaporating and leave very little residue. I wouldn't worry about it. If you are uncomfortable, cleaning the PC is never a bad idea.

 
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InvalidError

InvalidError

Titan
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The "no shaking" printed on those cans is to avoid spraying liquid. When you aren't spraying, you can shake the can all day long to make it warm up and get back to a usable pressure much quicker.
 
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einotaruk

Jul 11, 2018
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Yes, it can! Indirectly. The liquid evaporates quickly, cools the surface and water will condensate on it. If you turn it on before water is evaporated as well damage may occur.
 
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